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vladimirm2005
@vladimirm2005
July 2022
2
6
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(r+5)×7-54=(r+5)×4
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МрВиталий
7r+35-54=4r=20
3r=39
r=13
1 votes
Thanks 2
vladimirm2005
за сторание
МаринаГермановна
7r+35-54=4r+20
3r=20-35+54
3r=39
r=39:3
r=13
Проверка:
(13+5)*7-54=(13+5)*4
72=72
Ответ:13
1 votes
Thanks 2
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Answers & Comments
3r=39
r=13
3r=20-35+54
3r=39
r=39:3
r=13
Проверка:
(13+5)*7-54=(13+5)*4
72=72
Ответ:13